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Sigar獲取系統(tǒng)信息

yetao_study 2013-12-25

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直接看代碼：

[java] view plain copy

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hyperic.sigar.Cpu;
import org.hyperic.sigar.CpuPerc;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.Swap;
public class SigarServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
try {
Sigar sigar = new Sigar();
CpuPerc perc = sigar.getCpuPerc();
Mem mem = sigar.getMem();
Swap swap = sigar.getSwap();
int cpuUsage = (int)perc.getCombined();
int memFree = (int)(mem.getFree()/(1024l*1024l));
int memTotal = (int)(mem.getTotal()/(1024l*1024l));
int pageFileFree = (int)(swap.getPageOut()/(1024l*1024l));
int pageFileTotal = (int)(swap.getPageIn()/(1024l*1024l));
int swapFree = (int)(swap.getFree()/(1024l*1024l));
int swapTotal = (int)(swap.getTotal()/(1024l*1024l));
response.setContentType("text/html;charset=GB2312");
PrintWriter out = response.getWriter();
Cpu cpu = sigar.getCpu();
out.println("CPU Usage："+perc.getCombined());
out.println(" ");
out.println("Memory Free："+memFree);
out.println(" ");
out.println("Memory Total："+memTotal);
out.println(" ");
out.println("Swap Free："+swapFree);
out.println(" ");
out.println("Swap Total："+swapTotal);
out.println(" ");
out.println("Page Free："+pageFileFree);
out.println(" ");
out.println("Page Total："+pageFileTotal);
out.close();
} catch (Exception e) {
}
}
}

配置：

[html] view plain copy

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java./xml/ns/j2ee" xmlns:xsi="http://www./2001/XMLSchema-instance" xsi:schemaLocation="http://java./xml/ns/j2ee http://java./xml/ns/j2ee/web-app_2_4.xsd">
<display-name>sigar</display-name>
<servlet>
<servlet-name>sigarServlet</servlet-name>
<servlet-class>sigar.SigarServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>sigarServlet</servlet-name>
<url-pattern>/sigar</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>

需要的jar：
.sigar_shellrc
pdh.dll
sigar-1.5.0.1.jar
sigar-x86-winnt.dll
sigar-x86-winnt.lib

測試結果：

訪問http://127.0.0.1:8080/sigar/sigar

CPU Usage：0.22815533980582525
Memory Free：863
Memory Total：2046
Swap Free：2048
Swap Total：4330
Page Free：0
Page Total：0

測試系統(tǒng)：windows Vista